A rapid test tool for reinforced concrete cover
By designing a rapid inspection fixture for rebar protective layer, and using the height sorting of multiple inspection plates to determine the protective layer thickness, the problems of low inspection efficiency and large error in existing technologies are solved, achieving rapid and accurate inspection results and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中铁建(无锡)工程科技发展有限公司
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-16
Smart Images
Figure CN224365482U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar protective layer detection, in particular to a rapid inspection tool for steel bar protective layers. Background Technique
[0002] During the construction process, the steel bar protective layer is an important part to ensure that the steel bars are not eroded by the external environment and to ensure the durability of the structure. The requirements for steel bar binding construction are to ensure accurate position and firm binding. The position and quantity of the binding points should be reasonable to prevent the steel bars from shifting due to external forces such as vibration during the concrete pouring process, affecting the thickness of the protective layer. After the steel bars are bound, it is necessary to detect the thickness of the steel bar protective layer. The existing detection method is to manually measure the thickness of the protective layer with a ruler. Manual measurement with a ruler has two problems: large error and time-consuming and laborious. Therefore, in order to improve the detection efficiency of the steel bar protective layer, a rapid inspection tool for steel bar protective layers is urgently needed for the detection work. Content of the Utility Model
[0003] The problem to be solved is to provide a rapid inspection tool for steel bar protective layers to replace manual measurement and detection.
[0004] To achieve the above object, the utility model provides the following technical scheme: A rapid inspection tool for steel bar protective layers, including a horizontally arranged bottom plate, and not less than three detection plates vertically arranged on the bottom plate. The heights of the not less than three detection plates are all different and are arranged in order of height from small to large. The height value of one of the two end detection plates is lower than the minimum value required for the protective layer thickness, and the other is greater than the maximum value required for the protective layer thickness.
[0005] Preferably, the not less than three detection plates are integrally formed on the bottom plate.
[0006] Preferably, the number of the not less than three detection plates is three, namely detection plate one, detection plate two and detection plate three. The heights of detection plate one, detection plate two and detection plate three are H1, H2, H3 respectively, and the three satisfy H1 < H2 < H3, where H1 is lower than the minimum value required for the protective layer thickness, and H3 is greater than the maximum value required for the protective layer thickness.
[0007] Preferably, the top surface of detection plate one is an inclined surface, and the end of the inclined surface is connected to the top surface of detection plate two.
[0008] Preferably, the included angles between detection plate one, detection plate two, detection plate three and the bottom plate are all 90°.
[0009] Compared with the prior art, the utility model provides a rapid inspection tool for the steel bar protective layer, which has the following beneficial effects: By using the tool of the utility model for measurement, it can quickly and accurately judge whether the thickness of the protective layer meets the construction requirements. It is convenient to use and does not require manual measurement with a ruler at each point, greatly saving manpower, improving the detection efficiency, and being conducive to shortening the entire construction period. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 Schematic diagram of the back structure of the tool of the utility model;
[0011] Figure 2 Schematic diagram of the front structure of the tool of the utility model;
[0012] Figure 3 Schematic diagram of the use environment of the tool of the utility model;
[0013] Figure 4 Schematic diagram of the detection result of the tool of the utility model;
[0014] Description of reference numerals: 1. First detection board; 11. Inclined plane; 2. Second detection board; 3. Third detection board; 4. Bottom board; 5. Detection base surface; 6.待测钢筋. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following will describe the technical solutions in the embodiments of the utility model with reference to the accompanying drawings in the embodiments of the utility model:
[0016] In order to solve the problems raised in the background art, as shown in the figure, the utility model provides a rapid inspection tool for the steel bar protective layer. The tool includes a horizontally arranged bottom board 4, and there are at least three detection boards vertically arranged on the bottom board 4. The number of detection boards is determined according to the detection requirements. The heights of the at least three detection boards are all different and are arranged in order of height size. The height value of one of the two end detection boards is lower than the minimum value required for the protective layer thickness, and the other is greater than the maximum value required for the protective layer thickness. In this way, the detection board with the lowest height can detect the steel bars with insufficient protective layer thickness, and the detection board with the highest height can detect the steel bars with excessive protective layer thickness. The remaining detection boards can be set within the range required for the protective layer thickness. For example, the required range for the protective layer thickness is [m, n], m < n; excluding the two end detection boards, the heights of the remaining detection boards are set between [m, n] to judge the specific interval in which the detected steel bars are within the required range of the protective layer thickness.
[0017] Such as Figure 1 、 Figure 2An embodiment of the tooling is that at least three test plates are integrally formed and arranged on the bottom plate 4. The number of test plates is three, namely test plate one 1, test plate two 2 and test plate three 3. The heights of test plate one 1, test plate two 2 and test plate three 3 are H1, H2, H3 respectively, and the three satisfy H1 < H2 < H3, where H1 is the minimum value m of the protective layer thickness requirement, and H3 is greater than the maximum value n of the protective layer thickness requirement. The top surface of test plate one 1 can be set as a flat surface. In order for the steel bar to smoothly transition to test plate two 2, the top surface of test plate one 1 can be set as an inclined surface 11. The end of the inclined surface 11 is connected to the top surface of test plate two 2. The setting of the inclined surface 11 can ensure that the steel bar 6 to be tested slides smoothly onto test plate two 2.
[0018] During the test, the bottom plate 4 is horizontally placed on the test base surface 5. Since the angles between test plate one 1, test plate two 2 and test plate three 3 and the bottom plate 4 are all 90°, it can ensure that the vertical height of the steel bar 6 to be tested is accurately measured.
[0019] As Figure 3 shown in the schematic diagram of the steel bar cage to be tested, the test base surface 5 is the position of the concrete surface layer after the steel bar cage is poured. The distance between the steel bar 6 to be tested and the test base surface 5 is H. The purpose of the tooling inspection is to measure whether H is within the range of the protective layer thickness requirement [m, n]; combined with Figure 1 Figure 2 the embodiment of, the height H1 of test plate one 1 < m, the height H2 of test plate two 2 ∈ [m, n], and the height H3 of test plate three 3 > n. Place the tooling on one side of the steel bar 6 to be tested, make the arrangement direction of test plate one 1, test plate two 2, and test plate three 3 perpendicular to the length direction of the steel bar 6 to be tested, and test plate one 1 is close to the steel bar 6 to be tested. Then push the tooling under the steel bar 6 to be tested, and three possible results as shown in Figure 4 may occur; as shown in part a of Figure 4 , if the steel bar 6 to be tested is stuck above test plate one 1 and test plate two cannot be pushed under the steel bar 6 to be tested, it means that the distance H between the steel bar 6 to be tested and the test base surface 5 is too small, and the protective layer does not meet the requirement of being greater than m; as shown in part b of Figure 4 , if test plate one 1 smoothly passes under the steel bar 6 to be tested and test plate three 3 does not pass through, and the steel bar 6 to be tested is stuck above test plate two 2, it means that the distance H between the steel bar 6 to be tested and the test base surface 5 is within [m, n], meeting the protective layer thickness requirement; as shown in part c of Figure 4 , if test plate three 3 also smoothly passes under the steel bar 6 to be tested, it means that the distance H between the steel bar 6 to be tested and the test base surface 5 is too large, H is greater than the value n, and the protective layer thickness is too large and does not meet the requirement; just adjust the position where H does not meet the requirement for the above three test results.
[0020] This utility model testing fixture has a simple structure and is easy to operate. It only requires adjusting the height of the testing plate according to the protective layer thickness requirements. This device can quickly complete the testing task of whether the protective layer is qualified, and facilitate timely adjustment of the position of the reinforcing bars. The material of this utility model fixture can be stainless steel, wood, or plastic as needed, and there are no further limitations.
[0021] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A rapid inspection tool for the protective layer of reinforcing bars, characterized in that: It includes a horizontally arranged bottom plate (4), and there are at least three detection plates vertically arranged on the bottom plate (4). The heights of the at least three detection plates are different and are arranged in order of height size. The height value of one of the detection plates at both ends is lower than the minimum value required for the protective layer thickness, and the other is greater than the maximum value required for the protective layer thickness.
2. The rapid inspection fixture for the concrete cover of reinforcing bars as described in claim 1, characterized in that: The at least three detection plates are integrally formed on the bottom plate (4).
3. The rapid inspection fixture for the concrete cover of reinforcing bars as described in claim 2, characterized in that: The number of the at least three detection plates is three, namely detection plate one (1), detection plate two (2) and detection plate three (3). The heights of detection plate one (1), detection plate two (2) and detection plate three (3) are H1, H2, H3 respectively, and the three satisfy H1 < H2 < H3, where H1 is lower than the minimum value required for the protective layer thickness and H3 is greater than the maximum value required for the protective layer thickness.
4. The rapid inspection fixture for the concrete cover of reinforcing bars as described in claim 3, characterized in that: The top surface of detection plate one (1) is an inclined surface (11), and the end of the inclined surface (11) is connected to the top surface of detection plate two (2).
5. The rapid inspection fixture for the concrete cover of reinforcing bars as described in claim 4, characterized in that: The angles between detection plate one (1), detection plate two (2), detection plate three (3) and the bottom plate (4) are all 90°.